Testing device for graphene adsorbent

Abstract

The testing device comprises an outer cylinder, an inner cylinder is arranged in the outer cylinder, a cavity structure is formed between the inner cylinder and the outer cylinder, a connecting plate is arranged on the inner side wall of the inner cylinder, a rotating mechanism used for rotating the connecting plate is arranged at the top of the outer cylinder, and a gear ring is fixed to the inner side wall of the inner cylinder; stirring mechanisms for stirring the graphene adsorbent are arranged at two symmetrical ends of the bottom of the connecting plate, cleaning mechanisms for cleaning the inner wall of the inner cylinder are arranged at two ends of the bottom of the connecting plate, and a water tank is fixed at the bottom of the outer cylinder. Through the design that the rotating mechanism is matched with the cleaning mechanism, residual graphene adsorbents on the inner wall of the inner cylinder can be effectively scraped, the adsorbents are prevented from being adhered to the inner wall of the inner cylinder, the graphene adsorbents and a target pollutant solution can be effectively stirred through the stirring mechanism, uniform distribution of the adsorbents is ensured, and the adsorption efficiency is improved. Concentration differences at different positions are avoided, so that the reliability of experimental results is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of graphene adsorbent, especially to a testing device for graphene adsorbent. BACKGROUND

[0002] Graphene adsorbent is a kind of adsorbent with graphene as basic material, and is widely used in environmental governance, energy storage and catalysis due to its unique physical and chemical properties, graphene has high specific surface area, high conductivity, excellent mechanical strength and chemical stability, so it shows excellent performance in the adsorption process, with the rapid development of nanotechnology, graphene has been widely concerned due to its excellent physical and chemical properties, as a new two-dimensional material, this makes it show great application potential in environmental governance, energy storage, catalytic reaction and other fields, especially in the field of environmental remediation such as water treatment and air purification, graphene adsorbent is favored due to its high adsorption capacity and selectivity, and graphene adsorbent needs to test its adsorption performance in the production process, so a testing device for graphene adsorbent is needed.

[0003] During the testing process of graphene adsorbent, it is usually necessary to mix with pollutant solution, due to the strong van der waals force of graphene adsorbent, it is easy to adhere to the inner wall of the container during the mixing process, which may cause uneven distribution of adsorbent in the solution, which means that the concentration at different positions may have significant difference, reducing the reliability of experimental results. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a testing device for graphene adsorbent.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a testing device for graphene adsorbent, including the outer cylinder, the inside of outer cylinder is provided with inner cylinder, and the cavity structure between inner cylinder and outer cylinder, the inside wall of inner cylinder is provided with connecting plate, the top of outer cylinder is provided with rotating mechanism for rotating connecting plate, the inside wall of inner cylinder is fixed with gear ring, the bottom of connecting plate both ends are provided with stirring mechanism for stirring graphene adsorbent, the bottom of connecting plate both ends are provided with cleaning mechanism for cleaning the inner wall of inner cylinder, the bottom of water tank is fixed in the bottom of water tank, the bottom of water tank is provided with water supply mechanism for sending water in the cavity, the bottom of water tank is provided with adjusting mechanism for adjusting water temperature, the top of outer cylinder is fixed with feeding port, and feeding port and inner cylinder are communicated, the outer lateral wall of outer cylinder is provided with discharge pipe, and one end of discharge pipe and inner cylinder are communicated, the outer lateral wall of discharge pipe is installed with electromagnetic valve, and the utility model discloses in the process of using, can effectively scrape the graphene adsorbent residue of the inner wall of inner cylinder through the design of rotating mechanism cooperation cleaning mechanism, avoid adsorbent to be adhered on the inner wall of inner cylinder, can effectively stir graphene adsorbent and target pollutant solution through stirring mechanism, ensure that adsorbent is evenly distributed, avoid the concentration difference of different positions, thereby improve the reliability of experimental result.

[0007] Preferably, the rotating mechanism includes a rotating shaft, the rotating shaft is rotatably connected to the middle of the inner top of the outer cylinder, and the connecting plate is sleeved on the side wall of the rotating shaft, the top of the outer cylinder is fixed with a motor, and the output shaft of the motor is fixed with the rotating shaft.

[0008] Preferably, the stirring mechanism includes a connecting rod, the connecting rod is provided through the top of the connecting plate, a plurality of stirring rods are fixed on the side wall of the connecting rod in a staggered manner, a gear is sleeved on the top end of the side wall of the connecting rod, and the gear is engaged with the gear ring.

[0009] Preferably, the cleaning mechanism includes an arc-shaped scraper, the arc-shaped scraper is fixed on one end of the bottom of the connecting plate, and the arc-shaped scraper is matched with the inner cylinder, the rotating shaft is rotated by the driving motor, and then the connecting plate is rotated, the connecting plate rotates to drive the two connecting rods and the plurality of stirring rods to revolve along the inner side wall of the inner cylinder, in the process of rotation, the two connecting rods and the plurality of stirring rods are driven to rotate by the gear ring and the two gears respectively, the mixed solution is stirred, at the same time, the two arc-shaped scrapers are rotated by the rotation of the connecting plate, the inner side wall of the inner cylinder is scraped and cleaned, and the graphene adsorbent is prevented from adhering to the inner side wall of the inner cylinder, the mixed solution can be fully stirred by such a treatment method, the adsorbent is evenly distributed in the pollutant solution, the concentration difference of the solution at different positions is prevented, and the reliability of the experimental result is improved.

[0010] Preferably, the adjusting mechanism comprises a semiconductor refrigerating sheet, the bottom of the water tank is provided with a mounting hole, the semiconductor refrigerating sheet is fixed to the inner side wall of the mounting hole, a plurality of first fins are fixed to the hot end of the semiconductor refrigerating sheet in a linear shape at equal distances, a plurality of second fins are fixed to the cold end of the semiconductor refrigerating sheet in a linear shape at equal distances, the water feeding mechanism comprises a water pump, the water pump is fixed to the inner bottom of the water tank, a connecting pipe is arranged through the side wall of the water tank, one end of the connecting pipe is fixed to the water outlet of the water pump, the other end of the connecting pipe is communicated with the cavity, a plurality of branch pipes are arranged through the side wall of the water tank in a circular shape at equal distances, one end of each of the plurality of branch pipes is communicated with the water tank, the other end of each of the plurality of branch pipes is communicated with the cavity, the power switch of the semiconductor refrigerating sheet is turned on, after the semiconductor refrigerating sheet is powered on, the temperature of the hot end of the semiconductor refrigerating sheet rapidly rises to a specified value, the plurality of first fins cooperate to heat the water, so that the temperature of the water rises to the target temperature, at the same time, the power switch of the water pump is turned on, the water pump drives the connecting pipe to pump hot water into the cavity, and the surface of the inner cylinder is heated, so that the mixed solution can be heated, as the water level in the cavity rises, when the water level rises to the top of the outer cylinder, the water is returned to the water tank through the plurality of branch pipes and is heated again, in this way, the hot water in the cavity is in a circulating state, the mixed solution can be heated, and the mixed solution is uniformly heated, so that the reaction rate is improved and the adsorption process is promoted.

[0011] The device has the advantages that:

[0012] 1. In the use process, the connecting plate is rotated by the rotating mechanism, and the design of the cleaning mechanism can effectively scrape off the graphene adsorbent residues on the inner wall of the inner cylinder, avoid the adsorbent from being adhered to the inner wall of the inner cylinder, effectively stir the graphene adsorbent and the target pollutant solution through the stirring mechanism, ensure uniform distribution of the adsorbent, avoid concentration difference at different positions, and thus improve the reliability of experimental results.

[0013] 2. The water temperature can be accurately adjusted by the adjusting mechanism, the mixed solution can be heated to the target temperature, hot water can be sent into the cavity by the water feeding mechanism, the mixed solution can be heated, the reaction rate can be improved, and the adsorption process can be promoted.

[0014] 3. The circulation design between the water tank and the cavity makes the heated water in a circulating state, can continuously heat the surface of the inner cylinder, realizes uniform distribution of heat, can help the pollutants to be uniformly distributed in the solution, reduces local concentration difference, makes the graphene adsorbent more effectively contact with the pollutants, and improves the overall removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1This is a schematic diagram of the structure of a testing device for graphene adsorbents proposed in this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the outer cylinder, water tank, and inner cylinder of a testing device for graphene adsorbents proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the stirring mechanism and cleaning mechanism of a testing device for graphene adsorbents proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the water delivery mechanism and adjustment mechanism of a testing device for graphene adsorbents proposed in this utility model.

[0019] In the diagram: 1. Outer cylinder; 2. Water tank; 3. Motor; 4. Feed inlet; 5. Discharge pipe; 6. Solenoid valve; 7. Branch pipe; 8. Connecting pipe; 9. Shaft; 10. Connecting plate; 11. Gear ring; 12. Gear; 13. Connecting rod; 14. Stirring rod; 15. Water pump; 16. Semiconductor cooling chip; 17. First fin; 18. Second fin; 20. Arc-shaped scraper; 21. Inner cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1 - Figure 4A testing device for graphene adsorbents includes an outer cylinder 1, an inner cylinder 21 inside the outer cylinder 1, and a cavity structure between the inner cylinder 21 and the outer cylinder 1. A connecting plate 10 is provided on the inner wall of the inner cylinder 21. A rotating mechanism for rotating the connecting plate 10 is provided at the top of the outer cylinder 1. A toothed ring 11 is fixed on the inner wall of the inner cylinder 21. Stirring mechanisms for stirring the graphene adsorbent are symmetrically provided at both ends of the bottom of the connecting plate 10. Cleaning mechanisms for cleaning the inner wall of the inner cylinder 21 are provided at both ends of the bottom of the connecting plate 10. A water tank 2 is fixed at the bottom of the outer cylinder 1. A water delivery mechanism for delivering water into the cavity is provided at the bottom of the water tank 2. The device is equipped with a temperature control mechanism. An inlet 4 is fixed to the top of the outer cylinder 1 and is connected to the inner cylinder 21. An outlet pipe 5 is installed through the outer wall of the outer cylinder 1, and one end of the outlet pipe 5 is connected to the inner cylinder 21. A solenoid valve 6 is installed on the outer wall of the outlet pipe 5. During use, the device can effectively scrape off the graphene adsorbent residue on the inner wall of the inner cylinder 21 by means of a rotating mechanism and a cleaning mechanism, thus preventing the adsorbent from sticking to the inner wall of the inner cylinder 21. The stirring mechanism can effectively stir the graphene adsorbent and the target pollutant solution, ensuring that the adsorbent is evenly distributed and avoiding concentration differences at different locations, thereby improving the reliability of the experimental results.

[0022] In this invention, the rotating mechanism includes a rotating shaft 9, which is rotatably connected to the middle of the top of the outer cylinder 1. A connecting plate 10 is sleeved on the side wall of the rotating shaft 9. A motor 3 is fixed to the top of the outer cylinder 1, and the output shaft of the motor 3 is fixed to the rotating shaft 9. The stirring mechanism includes a connecting rod 13, which is inserted through the top of the connecting plate 10. Multiple stirring rods 14 are fixedly and offset on the side wall of the connecting rod 13. A gear 12 is sleeved on the top of the side wall of the connecting rod 13, and the gear 12 meshes with a gear ring 11. The cleaning mechanism includes an arc-shaped scraper 20, which is fixed to one end of the bottom of the connecting plate 10 and is adapted to the inner cylinder 21. The driving motor 3 drives the rotating shaft 9 to rotate, thereby driving the connecting plate 10. The rotating connecting plate 10 drives the two connecting rods 13 and multiple stirring rods 14 to revolve along the inner wall of the inner cylinder 21. During the rotation, the gear ring 11 and two gears 12 drive the two connecting rods 13 and multiple stirring rods 14 to rotate, thus stirring the mixed solution. At the same time, the rotating connecting plate 10 drives the two arc-shaped scrapers 20 to rotate, scraping and cleaning the inner wall of the inner cylinder 21 to prevent the graphene adsorbent from adhering to the inner wall of the inner cylinder 21. This treatment method can fully stir the mixed solution, so that the adsorbent is evenly distributed in the pollutant solution, preventing significant differences in solution concentration at different locations and improving the reliability of experimental results.

[0023] In this invention, the adjustment mechanism includes a semiconductor cooling chip 16. A mounting hole is provided at the bottom of the water tank 2. The semiconductor cooling chip 16 is fixed to the inner wall of the mounting hole. Multiple first fins 17 are fixed linearly at equal intervals at the hot end of the semiconductor cooling chip 16, and multiple second fins 18 are fixed linearly at equal intervals at the cold end of the semiconductor cooling chip 16. The water supply mechanism includes a water pump 15, which is fixed to the bottom of the water tank 2. A connecting pipe 8 is provided through the side wall of the water tank 2. One end of the connecting pipe 8 is fixed to the outlet of the water pump 15, and the other end of the connecting pipe 8 communicates with a cavity. Multiple branch pipes 7 are provided circularly at equal intervals on the outer wall of the water tank 2. One end of each branch pipe 7 communicates with the water tank 2, and the other end of each branch pipe 7 communicates with the cavity. The power supply to the semiconductor cooling chip 16 is then activated. When the semiconductor cooling chip 16 is powered on, its hot end temperature rises rapidly to a specified value. This, combined with multiple first fins 17, heats the water to the target temperature. Simultaneously, the power switch of the water pump 15 is turned on, driving the pump 15 and connecting pipe 8 to draw hot water into the cavity, heating the surface of the inner cylinder 21. This heats the mixed solution. As the water level in the cavity rises, when it reaches the top of the outer cylinder 1, it flows back to the water tank 2 through multiple branch pipes 7 for reheating. This operation keeps the hot water in the cavity in a circulating state, thus heating the mixed solution and ensuring uniform heating, which helps to increase the reaction rate and promote the adsorption process.

[0024] Working principle: During use, the water tank 2 is pre-filled with water, and the semiconductor cooling chip 16 is set to a specified value. Then, the graphene adsorbent and the target pollutant solution of known concentration are injected into the inner cylinder 21 through the feed inlet 4. At this time, the power switch of the motor 3 is turned on, driving the motor 3 to rotate the rotating shaft 9, which in turn drives the connecting plate 10 to rotate. The rotation of the connecting plate 10 drives the two connecting rods 13 and multiple stirring rods 14 to revolve along the inner wall of the inner cylinder 21. During the rotation, the gear ring 11 and two gears 12 respectively drive the two... The connecting rod 13 and multiple stirring rods 14 rotate to stir the mixed solution. Simultaneously, the rotating connecting plate 10 drives two arc-shaped scrapers 20 to rotate, scraping and cleaning the inner wall of the inner cylinder 21 to prevent the graphene adsorbent from adhering to the inner wall. This method ensures thorough stirring of the mixed solution, resulting in uniform distribution of the adsorbent in the pollutant solution and preventing significant differences in solution concentration at different locations, thus improving the reliability of experimental results. During stirring, the power supply to the semiconductor cooling chip 16 is switched on. When the semiconductor cooling chip 16 is powered on, its hot end temperature rapidly rises to a specified value. This, combined with multiple first fins 17, heats the water to the target temperature. Simultaneously, the power switch of the water pump 15 is turned on, driving the pump to pump hot water into the cavity through the connecting pipe 8. This heats the surface of the inner cylinder 21, thus heating the mixed solution. As the water level in the cavity rises, when it reaches the top of the outer cylinder 1, it flows back to the water tank 2 through multiple branch pipes 7 for reheating. This operation... The operation mode allows the hot water in the cavity to circulate, which heats the mixed solution and ensures uniform heating, thus improving the reaction rate and promoting the adsorption process. After mixing, the solenoid valve 6 is opened, and the mixed solution is discharged from the outer cylinder 1 through the discharge pipe 5 and collected. The mixed solution is then separated from the adsorbent by centrifugation, filtration, and other methods. The concentration of the remaining pollutants in the solution is analyzed experimentally, and the adsorption capacity of the adsorbent for the target pollutant is calculated based on the change in pollutant concentration before and after adsorption.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing device for graphene sorbents comprising an outer cylinder (1), characterized in that, The outer cylinder (1) is internally provided with an inner cylinder (21), and the space between the inner cylinder (21) and the outer cylinder (1) is a cavity structure, the inner side wall of the inner cylinder (21) is provided with a connecting plate (10), the top of the outer cylinder (1) is provided with a rotating mechanism for rotating the connecting plate (10), the inner side wall of the inner cylinder (21) is fixed with a gear ring (11), the bottom of the connecting plate (10) is provided with a stirring mechanism for stirring the graphene adsorbent at both ends, the bottom of the connecting plate (10) is provided with a cleaning mechanism for cleaning the inner wall of the inner cylinder (21) at both ends, the bottom of the outer cylinder (1) is fixed with a water tank (2), the inner bottom of the water tank (2) is provided with a water feeding mechanism for feeding water into the cavity, the inner bottom of the water tank (2) is provided with an adjusting mechanism for adjusting the water temperature, the top of the outer cylinder (1) is fixed with a feeding port (4), and the feeding port (4) and the inner cylinder (21) are communicated, the outer side wall of the outer cylinder (1) is provided with a discharge pipe (5), and one end of the discharge pipe (5) and the inner cylinder (21) are communicated, and the outer side wall of the discharge pipe (5) is provided with an electromagnetic valve (6).

2. The test device for graphene adsorbents of claim 1, wherein, The rotating mechanism comprises a rotating shaft (9), the rotating shaft (9) is rotatably connected to the inner top of the outer cylinder (1), and the connecting plate (10) is sleeved on the side wall of the rotating shaft (9), the top of the outer cylinder (1) is fixed with a motor (3), and the output shaft of the motor (3) is fixed with the rotating shaft (9).

3. The test device for graphene adsorbents of claim 1, wherein, The stirring mechanism comprises a connecting rod (13), the connecting rod (13) is provided through the top of the connecting plate (10), a plurality of stirring rods (14) are fixed on the side wall of the connecting rod (13) in staggered manner, a gear (12) is sleeved on the top end of the side wall of the connecting rod (13), and the gear (12) is engaged with the gear ring (11).

4. The test device for graphene adsorbents of claim 1, wherein, The cleaning mechanism comprises an arc-shaped scraper (20), the arc-shaped scraper (20) is fixed to one end of the bottom of the connecting plate (10), and the arc-shaped scraper (20) is matched with the inner cylinder (21).

5. The test device for graphene adsorbents of claim 1, wherein, The adjusting mechanism comprises a semiconductor refrigerating sheet (16), the bottom of the water tank (2) is provided with a mounting hole, the semiconductor refrigerating sheet (16) is fixed on the inner side wall of the mounting hole, a plurality of first fins (17) are fixed on the hot end of the semiconductor refrigerating sheet (16) in linear manner, and a plurality of second fins (18) are fixed on the cold end of the semiconductor refrigerating sheet (16) in linear manner.

6. The test device for graphene adsorbents of claim 1, wherein, The water feeding mechanism comprises a water pump (15), the water pump (15) is fixed on the inner bottom of the water tank (2), the side wall of the water tank (2) is provided with a connecting pipe (8), one end of the connecting pipe (8) is fixed with the water outlet of the water pump (15), the other end of the connecting pipe (8) is communicated with the cavity, a plurality of branch pipes (7) are provided on the outer side wall of the water tank (2) in circular manner, one end of each of the plurality of branch pipes (7) is communicated with the water tank (2), and the other end of each of the plurality of branch pipes (7) is communicated with the cavity.

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